Burnie, 2 February 2012 | Tim Rose

Victorian pair Sam Groth and Olivia Rogowska have joined Bojana Bobusic as Aussies into the McDonald’s Burnie International semifinals after straight sets wins on Thursday.

Huge serving Groth took the first set over Queensland’s John Millman in a characteristically unpredictable first set, breaking early before dropping serve immediately after.

He then peeled off five games in a row to take the set 7-5 from a shell-shocked Millman. In between, onlookers saw some trademark emotion from Groth, smashing a ball into neighbouring houses in frustration. In the end though, he overwhelmed his out-of-sorts opponent with his serve – hitting 220km/h at match point – and heavy forehand.

Groth now plays Japanese eighth seed Yuichi Sugita for a place in the final.

“At 5-3 I just changed it up and made a lot of balls, a few higher and heavy ones. He seemed to struggle with that and I went on a bit of a run,” Groth said after the match.

After being drawn to face the top seed Denis Istomin in the second round before the Uzbek pulled out with injury, Groth is now one match away from the final.

“[Coming into Burnie] I felt like if I do everything right, I can win matches here. One match at a time, but there’s no reason why I can’t win this tournament,” he said.

VIDEO: Sam Groth – Quarterfinal Post Match – 2012 McDonald’s Burnie International

Danai Udomchoke of Thailand caused somewhat of an upset by ousting second seed Yen-Hsun Lu of Chinese Taipei in two tiebreak sets. He plays Lu’s countryman Jimmy Wang in the semifinals.

Wang made light work of the in-form Ben Mitchell in straight sets.

Rogowska appeared in much better form than during her second round win on Wednesday. There, her game was wayward early before grinding out a win over talented Korean junior Su Jeong Jang.

Her quarterfinal performance against Shuko Aoyama of Japan was better from the outset, breaking early for 3-0 and racing through the first set 6-1. Despite more resistance in the second set from Aoyama, the Victorian was able to close out the win.

Australia is guaranteed a final representative in the women’s draw, with West Australian Bobusic defeating New South Wales’ Monique Adamczak in their quarterfinal. After exchanging breaks early, Adamczak was able to take the first set with some smart tactical tennis.

Changing up the pace with regular slicing off the backhand side, Adamczak also took the opportunity to attack where possible against the slight favourite Bobusic.

West Australian Bobusic then levelled at one set all, and broke early in the third. A second break from Bobusic cemented her advantage, closing out the set and the match 6-1.

Top seed Yurika Sema of Japan was too good for an inconsistent Arina Rodionova, blitzing the soon-to-be Australian 6-0 in the first set. Rodionova was able to level the match but was outclassed in the decider.

Sema’s semifinal opponent will be top Russian junior Irena Khromacheva, who defeated defending champion Eugenie Bouchard in straight sets.

All centre court matches are live streamed, with commentary from Adrian Franklin and guests.

Thursday, 2nd February – Results

Men’s Singles – Quarterfinals

[6] Danai Udomchoke (THA) d [2] Yen-Tsun Lu (TPE) 7-6(2) 7-6 (5)

Jimmy Wang (TPE) d Ben Mitchell (Qld) 6-3 6-0

Samuel Groth (Vic) d John Millman (Qld) 7-5

[8] Yuichi Sugita (JPN) d Ti Chen (TPE) 3-6 6-1 6-3

Women’s Singles – Quarterfinals

[2] Olivia Rogowska (Vic) d Shuko Aoyama (JPN) 6-1 6-4

[1] Yurika Sema (JPN) d [6] Arina Rodionova (RUS) 6-0 3-6 6-2

[7] Bojana Bobusic (WA) d Monique Adamczak (NSW) 3-6 6-4 6-1

Irena Khromacheva (RUS) d Eugenie Bouchard (CAN) 6-1 6-3

Men’s Doubles – Quarterfinals

Nima Roshan (Vic)/Jose Statham (NZ) d John Paul Fruttero (USA)/Raven Klaasen 7-6(7) 7-6(5)

Sebastian Rieschick (GER)/Danai Udomchoke (THA) d Erik Chvojka (CAN)/Adam Hubble (Vic) 6-2 5-7 (13-11)

John Peers (Vic)/JP Smith (Qld) d Samuel Groth (Vic)/Greg Jones (NSW) 7-6(6) 4-6 (10-5)

Women’s Doubles – Semifinals

Stephanie Bengson (NSW)/Tyra Calderwood (NSW) d Mervana Jugic-Salkic (BIH)/Ksenia Lykina (RUS) 4-6 6-3 (10-5)

Arina Rodionova (RUS)/Melanie South (GBR) v Aiko Nakamura (JPN)/Ayumi Oka (JPN)

Friday, 3rd February – Schedule

Men’s Singles – Semifinals

Samuel Groth (Vic) v [8] Yuichi Sugita (JPN)

[6] Danai Udomchoke (THA) v Jimmy Wang (TPE)

Women’s Singles – Semifinals

[2] Olivia Rogowska (Vic) v

[1] Yurika Sema (JPN) v Irina Khromacheva (RUS) or Eugenie Bouchard (CAN)